Introduction Spray foam insulation is the best attic insulation of 2023. Spray foam provides strong energy savings and a long lifespan with minimal maintenance. It can be installed in a day, which means that it can be done before your home is occupied or before winter arrives. Types of Attic Insulation There are several different types of attic insulation to choose from. The most common type is fiberglass batts, which can be purchased at any home improvement store and installed by a professional contractor. Another option is spray foam insulation, which comes in two main varieties: open-cell and closed-cell. Open-cell spray foam has lower R-values than closed-cell but costs less money and takes less time to install; it also has fewer environmental impacts because it doesn't contain toxic chemicals like polyurethane or ethylene propylene diene monomer (EPDM). Spray Foam is the best attic insulation of 2023. Spray foam insulation is the best attic insulation of 2023. Spra